20366562101 has 4 divisors (see below), whose sum is σ = 20463086304. Its totient is φ = 20270037900.

The previous prime is 20366562089. The next prime is 20366562107. The reversal of 20366562101 is 10126566302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20366562101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20366562107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48261785 + ... + 48262206.

It is an arithmetic number, because the mean of its divisors is an integer number (5115771576).

Almost surely, 2^20366562101 is an apocalyptic number.

It is an amenable number.

20366562101 is a deficient number, since it is larger than the sum of its proper divisors (96524203).

20366562101 is an equidigital number, since it uses as much as digits as its factorization.

20366562101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96524202.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 20366562101 in words is "twenty billion, three hundred sixty-six million, five hundred sixty-two thousand, one hundred one".